(30) Sirs, what must I do to be saved?--The use of "Sirs" differs from that of Acts 7:26 in having a Greek word, expressive of respect (that used in John 20:15), corresponding to it. We ask what the gaoler meant by the question. Was he thinking of temporal safety from the earthquake, or from punishment; or had there come upon him, in that suicidal agony, the sense of an inward misery and shame, a "horror of great darkness" from which he sought deliverance? The latter seems every way most probable. It must be remembered that the very circumstances which had brought St. Paul to the prison had pointed him out as "proclaiming the way of salvation" (Acts 16:17). The witness of the demoniac girl was thus not altogether fruitless.

16:25-34 The consolations of God to his suffering servants are neither few nor small. How much more happy are true Christians than their prosperous enemies! As in the dark, so out of the depths, we may cry unto God. No place, no time is amiss for prayer, if the heart be lifted up to God. No trouble, however grievous, should hinder us from praise. Christianity proves itself to be of God, in that it obliges us to be just to our own lives. Paul cried aloud to make the jailer hear, and to make him heed, saying, Do thyself no harm. All the cautions of the word of God against sin, and all appearances of it, and approaches to it, have this tendency. Man, woman, do not ruin thyself; hurt not thyself, and then none else can hurt thee; do not sin, for nothing but that can hurt thee. Even as to the body, we are cautioned against the sins which do harm to that. Converting grace changes people's language of and to good people and good ministers. How serious the jailer's inquiry! His salvation becomes his great concern; that lies nearest his heart, which before was furthest from his thoughts. It is his own precious soul that he is concerned about. Those who are thoroughly convinced of sin, and truly concerned about their salvation, will give themselves up to Christ. Here is the sum of the whole gospel, the covenant of grace in a few words; Believe in the Lord Jesus Christ, and thou shalt be saved, and thy house. The Lord so blessed the word, that the jailer was at once softened and humbled. He treated them with kindness and compassion, and, professing faith in Christ, was baptized in that name, with his family. The Spirit of grace worked such a strong faith in them, as did away further doubt; and Paul and Silas knew by the Spirit, that a work of God was wrought in them. When sinners are thus converted, they will love and honour those whom they before despised and hated, and will seek to lessen the suffering they before desired to increase. When the fruits of faith begin to appear, terrors will be followed by confidence and joy in God.And brought them out,.... Of the inner prison, to some part of the prison that was more free and open:

and said, Sirs, what must I do to be saved? he treats them with great reverence now, and addresses them under a title and character of honour and respect; whom but a few hours ago he despised and abhorred, and perhaps knew no name bad enough for them; he now saw himself lost and perishing, and wanted their instructions, advice, and assistance; and as most persons under first awakenings are, so he was, upon the foot of works; thinking he must do something to procure his salvation, and desires to know what it was he must do, that he might set about it directly; and it may be he had heard what the damsel possessed with a spirit of divination had frequently said of Paul and Silas, that they were the servants of the most high God, and showed unto men the way of salvation, Acts 16:17 and therefore he desires that they would acquaint him with it: his language shows, he was in earnest, and expresses great eagerness, importunity, and haste.